11185706369 has 2 divisors, whose sum is σ = 11185706370. Its totient is φ = 11185706368.

The previous prime is 11185706341. The next prime is 11185706447. The reversal of 11185706369 is 96360758111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11127718144 + 57988225 = 105488^2 + 7615^2 .

It is a cyclic number.

It is not a de Polignac number, because 11185706369 - 2²⁰ = 11184657793 is a prime.

It is a super-2 number, since 2×11185706369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11185703369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5592853184 + 5592853185.

It is an arithmetic number, because the mean of its divisors is an integer number (5592853185).

Almost surely, 2^11185706369 is an apocalyptic number.

It is an amenable number.

11185706369 is a deficient number, since it is larger than the sum of its proper divisors (1).

11185706369 is an equidigital number, since it uses as much as digits as its factorization.

11185706369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 11185706369 in words is "eleven billion, one hundred eighty-five million, seven hundred six thousand, three hundred sixty-nine".